I was cheching through a 1974 Shooters Bible and on page 406 in the Lyman cast bullet section they list bullet # 225107 which is a 38 gr. with a lube groove and a cut for a gas check, I suppose they dont make this any more but it would sure be interesting to try some lead bullets with a reduced charge but that would defeat the purpose of the Jet in the first place. I dont suppose any body out there might have this mold or might have already tried this?